GHSA-rq42-58qf-v3qx

LibreNMS vulnerable to rate limiting bypass on login page

Source: GitHub Advisory Database (reviewed) Moderate CVE-2023-46745

Packages

Ecosystem	Package	Affected	Fixed in
Packagist	librenms/librenms	< 23.11.0	23.11.0

Details

As written in the advisory (Markdown source, shown as plain text).

### Summary Application is using two login methods and one of them is using GET request for authentication. There is no rate limiting security feature at GET request or backend is not validating that. ### PoC Go to /?username=admin&password=password&submit= Capture request in Burpsuite intruder and add payload marker at password parameter value. Start the attack after adding your password list We have added 74 passwords Check screenshot for more info <img width="1241" alt="Screenshot 2023-11-06 at 8 55 19 PM" src="https://user-images.githubusercontent.com/31764504/280905148-42274f1e-f869-4145-95b4-71c0bffde3a0.png"> ### Impact An attacker can Bruteforce user accounts and using GET request for authentication is not recommended because certain web servers logs all requests in old logs which can also store victim user credentials.

References

External links from the advisory. They lead to third-party sites.